Abstract
In recent years, technology for achieving higher compressor pressure ratio, higher performance and compactness has become an essential requirement in the design of turbochargers installed on 4 stroke diesel engines from the viewpoint of preventing global warming and air pollution and for achieving higher engine output and higher efficiency.
Under these circumstances, IHI has developed the radial type AT14 turbocharger with high reliability and durability. This new turbocharger was designed based on abundant experiences of IHI in field. AT14 turbocharger was subjected to run on the test-rig over a long period of time and confirmation tests with reliability and durability were conducted at various stages of development. The longest running hours of AT14 turbochargers reached almost 8, 000 hours without any problem and the condition of the bearings are good for such long operating hours. These results show that AT14 turbocharger has enough reliability and durability even under the heavy fuel oil application.
